<!-- jQuery -->
<script src="//cdn.bootcss.com/jquery/2.1.4/jquery.min.js"></script>
<!-- Bootstrap Core JavaScript -->
<script src="//cdn.bootcss.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<!-- Plugin JavaScript -->
<script src="//cdn.bootcss.com/jquery-easing/1.4.1/jquery.easing.min.js"></script>
<!-- Lazyload JavaScript -->
<script type="text/javascript" src="//cdn.bootcss.com/jquery.lazyload/1.9.1/jquery.lazyload.min.js" ></script>